FCGI_ABORT_REQUEST
FCGI_AUTHORIZER
FCGI_BEGIN_REQUEST
FCGI_CANT_MPX_CONN
FCGI_DATA
FCGI_END_REQUEST
FCGI_FILTER
FCGI_GET_VALUES
FCGI_GET_VALUES_RESULT
FCGI_HEADER_LEN
FCGI_KEEP_CONN
FCGI_LISTENSOCK_FILENO
FCGI_MAXTYPE
FCGI_MAX_CONNS
FCGI_MAX_REQS
FCGI_MPXS_CONNS
FCGI_NULL_REQUEST_ID
FCGI_OVERLOADED
FCGI_PARAMS
FCGI_REQUEST_COMPLETE
FCGI_RESPONDER
FCGI_STDERR
FCGI_STDIN
FCGI_STDOUT
FCGI_UNKNOWN_ROLE
FCGI_UNKNOWN_TYPE
FCGI_VERSION_1